diff --git a/bungee/src/main/java/org/geysermc/floodgate/inject/bungee/BungeeInjector.java b/bungee/src/main/java/org/geysermc/floodgate/inject/bungee/BungeeInjector.java
index 53e56b67..21967142 100644
--- a/bungee/src/main/java/org/geysermc/floodgate/inject/bungee/BungeeInjector.java
+++ b/bungee/src/main/java/org/geysermc/floodgate/inject/bungee/BungeeInjector.java
@@ -91,6 +91,10 @@ public void inject() {
             ChannelInitializer<Channel> wrapper = new ChannelInitializer<Channel>() {
                 @Override
                 protected void initChannel(Channel channel) {
+                    // Check if the channel is open, see #547
+                    if (!channel.isOpen()) {
+                        return;
+                    }
                     ReflectionUtils.invoke(original, initChannelMethod, channel);
                     channel.pipeline().addBefore(
                             PipelineUtils.FRAME_DECODER, BUNGEE_INIT,